Three old Knight games

At Michel Boutin presentation in the BGS, he mentioned a lot of 19th century board games that were patented in France, UK, Germany and in the US (and most already forgotten). Here are three related games using the Chess Knight, grouped together in a package called Rampant Knights.

These are the board (click to augment), [source]

These are the rules:

The next pages from Hoyle's Rules of Games talk about these games:

He also mentioned a board game called "Jeu du Congo" (Game of the Congo) with a hexagonal board:

which was re-edited by Moulin in the French book Jeux de pions d’aujourd'hui. The rules can be found at issue 8 (Winter 2001) of the Abstract Games Magazine.